diff --git a/Gemfile.lock b/Gemfile.lock
index d00c4e7..b3c3b61 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,8 +7,8 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.9.0)
+      public_suffix (>= 2.0.2, < 8.0)
     coderay (1.1.2)
     crack (0.4.3)
       safe_yaml (~> 1.0.0)
@@ -49,7 +49,7 @@ GEM
     pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    public_suffix (4.0.3)
+    public_suffix (5.1.1)
     rake (13.0.1)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.1)